Laravel Eloquent Cascading Delete
This package offers a simple trait that leverages the Eloquent delete event to recursively delete all specified relations for a given model.
Installation
Begin by installing this package through Composer. Edit your project's composer.json file to require fish/eloquent-cascade.
"require": {
"fish/eloquent-cascade": "^1.0"
}
Next, update Composer from the Terminal:
composer update
Usage
-
Include the trait in a parent model and make the other models extend it:
namespace App;
use Illuminate\Database\Eloquent\Model;
use Fish\Cascade\Cascade;
class BaseModel extends Model
{
use Cascade;
}
-
Add the relations you wish to delete to a protected $cascade array on the model. e.g:
class User extends BaseModel
{
protected $cascade = ['author'];
public function author() {
return $this->hasOne(Author::class);
}
}
class Author extends BaseModel
{
protected $cascade = ['posts'];
public function user() {
return $this->belongsTo(User::class);
}
public function posts() {
return $this->hasMany(Post::class);
}
}
class Post extends BaseModel
{
protected $cascade = ['comments'];
public function comments() {
return $this->hasMany(Comment::class);
}
}
If you are using a trait for polymorphic relations and want to add this relation to the $cascade array, override the protected getCascade method.
Suppose you have a Locale trait:
trait Locale {
public function locale() {
return $this->morphMany(Locale::class, 'translatable');
}
protected function getCascade() {
return array_merge($this->cascade, ['locale']);
}
}
